Multiple SOI Structure Fabricate by High Dose Oxygen Implantation and Epitaxial Growth

Abstract
A triple SOI (Silicon crystal On Insulator) structure has been fabricated on (100) and (111) Si substrates, utilizing three SIMOX (Separation by IMplanted OXygen) cycles. The SIMOX process consists of high-dose oxygen implantation followed by annealing and epitaxial growth of silicon, and provides good surface morphology. The top Si layer of the present triple SOI is single crystalline, which is confirmed by reflection electron diffraction and Rutherford backscattering measurement.